Improved window-screen



" titled mes JAMES A; THosN, 'or

CHICAGO, ILLINOIS.

Letters Patent No. 96,363, dated November 2, 1869.

'IMPROVED WINDOW-SCREEN.

The Schedule referred to in these Letters Patent and making part of thesame To all whom t't may concern:

Be it known that I, JAMES' A. THORN, of Chicago, in the county ofOook,'and State of Illinois, have invented an Improved Screen forWindows; and I do hereby declare that the following is a full, clear,and

exact description thereof, which will enable others` Figure 2, aperspective representation of the same,

removed from the window. v

This invention relates to an improvement in that class of wndow-screenswhich may be adj usted to suit window-frames of different widths; and

Its nature consists in attaching to the bottoln and top of one of thescreen-frames, guide-strips, which have tongues running in 'groovesformed in the top and bottom edges ofthe other frame, andin fasteningmetal plates to the frame in'w-hich the grooves are made, to llthespaces between it and the window-sill and sash, as hereinafter clearlyshown.

G D E represent the inner ,fra-ine, which is made of wood, inthe usualmanner, and provided `with slots, P, through which screws, N, are pnt,to holdl the frame C D E to a frame, H G. F, when the frames areadjusted to a window-frame, as shown at g. 1.

The gauze or wire cloth L is placed .on the outer sides ot' the flames,and held in place'by means of small strips of wood, M,`fg. 3, driveni'to grooves extending around the outer sides ot said flame-s.

Nothing,- however, is claimed in theconstruction so far set forth, asadjustable frames have been before used.

In order soto hold the two frames together that they will remainparallel to each otner, and run easily, I attach a strip, K, providedwith a tongue on its inner side, to the top edge of rail D oftheinueri-ame, and attach a strip, J, zalso, provided with a tongue, tothe lower rail E, said strips extending over the edges ot' the rails G Hof theouterframe, and the tongues f, running in groo 'es lh, so hold theflames that the StilesA FO will always remain parallel, f

lThis is not the case where the screws N are wholly relied upon to holdthe frame in place; consequently there is considerable troubleexperienced in adjusting the screen to the window-frame `in the lattercase, which is not met in' setting my improved screen.

In order to till the space between the rail G and sash B, and the spacebetween the rail-H and sill Z, I fasten, by screws or otherwise, thinmetal plates, I, as shown at figs. 1 and 2,v thus preventing thepossibility of insects passing through. y

All that is required' to adjust the screen to the window-trame is toraise the sash B, set the screen under it, and draw the flames apart toreach the jamb casing, then fasten the' set-screws N., and allow thesash to rest on lthe top of the screen, as shown at tig. l.. Having thusdescribed in v invention,

What I claim, and desire to secure by Letters Patentpt' the UnitedStates, is

screens, the guide-pieces K J, provided with tongues f running I, saidparts being lused to facilitate the` adjusting of the flames C DE and FG H, and shut the space 'H and sill Z, as described.

. JAMES A. THORN'.,

Witnesses:V

G. L. GRAPH,.- E. E. GrsoN.

In' the construction and arrangement of adjustable in grooves h, incombination withgthe plates between'the rail G and sash'B,.and betweenthe railV

